We know that the lace is also what we would call the circumference of the circle.
And we also know that the circumference of a circle is represented by the equation:

.
We then can use the length of the lace (12.56 ft) to solve for the diameter (d) of the rug. Let us solve for that now:


We now know that the diameter of the rug is
4 ft.
Answer: 314.3
Explanation: multiply 449 by .30 and then subtract your solution of that to 449 and you will have your new sum
For all of them just use the Pythagorean theorem which is a squared plus b squared equals c squared where c is the hypotenuse (length of the side opposite the right angle) and a and b are legs. Just plug it in and solve for the missing length. For example, 1 would be (12) squared plus (5) squared equals c squared
Simplify to get 144 plus 25=c squared
169 equals c squared
Find the square root of both sides
c=13
Answer:
its C
Step-by-step explanation:
it's because 3x7 is 21 add 4 to that its 25 and that's your answer